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PTC Resettable Fuses

PTC resettable fuses, or polymer positive temperature coefficients, are electronic components used for protecting circuits from damage due to overload currents and shorts. They are sensitive to current overloads, and will open the circuit if the current rating is exceeded. Once opened, the fuse will reset automatically when the current returns to normal level, allowing the circuit to be used again. PTC resettable fuses are used in a wide variety of applications, from computer systems to automotive electronics.

PTCCL11H321FTE application field and working principle

The PTCCL11H321FTE is a low voltage over-current protection PTC resettable fuse manufactured by Cooner Wire. It is designed for use in low voltage applications such as DC power circuits, communication lines, and audio equipment. The PTCCL11H321FTE has a rated current of 3.2A and a rated voltage of 30V.

The PTCCL11H321FTE works by sensing the current in the circuit and responding with a change in resistance. When the current increases beyond the normal operating level, the PTC resettable element increases its resistance, causing a rapid increase in temperature that will open the circuit. The high resistance also prevents further current from flowing through the circuit. When the excess current dissipates, the PTCCL11H321FTE will reset and the circuit can be used again.

The PTCCL11H321FTE is a reliable and cost-effective way to protect sensitive circuits from damage due to excessive current. It is a suitable choice for applications where the current levels could fluctuate or surge above the normal levels, and also where multiple resets are required.

Conclusion

The PTCCL11H321FTE PTC resettable fuse is an ideal way to protect sensitive circuits from the dangers of excessive current. It is effective and reliable, and suitable for a range of applications. The PTCCL11H321FTE is available in a range of sizes and current ratings, making it a flexible and cost-effective choice for protecting circuits.

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